Table 4 Phenotypic (above the diagonal) and genetic (below the diagonal) correlations (SE in parenthesis) in saline- and fresh- water environments.

From: Does selection in a challenging environment produce Nile tilapia genotypes that can thrive in a range of production systems?

Traits

Saline water

Freshwater

Weight

BC

FCR

Survival

Maturity

Deformity

Weight

BC

FCR

Survival

Maturity

Deformity

Weight

 

0.17 (0.01)

−0.91 (.003)

0.05 (0.01)

0.44 (0.020)

−0.04 (0.02)

 

0.33 (0.03)

−0.92 (.004)

n.e.

0.42 (0.02)

−0.04 (0.02)

BC

0.22 (0.05)

 

−0.46 (0.03)

0.06 (0.01)

0.15 (0.03)

0.02 (0.02)

0.17 (0.14)

 

−0.38 (0.03)

−0.45 (0.070)

0.09 (0.03)

−0.03 (0.030)

FCR

−0.99 (0.01)

−0.46 (0.13)

 

−0.50 (0.02)

−0.47 (0.03)

n.e.

−0.93 (0.02)

−0.24 (0.13)

 

−0.66 (0.04)

−0.49 (0.02)

0.006 (0.02)

Survival

0.12 (0.11)

0.10 (0.06)

−0.76 (0.06)

 

−0.26 (0.03)

−0.32 (0.02)

n.e.

−0.10 (0.50)

−0.40 (0.26)

 

0.001 (0.03)

−0.33 (0.03)

Maturity

0.78 (0.12)

0.48 (0.14)

−0.77 (0.06)

0.38 (0.15)

 

−0.01 (0.02)

0.84 (0.05)

0.34 (0.13)

−0.85 (0.05)

0.10 (0.30)

 

−0.02 (0.02)

Deformity

−0.17 (0.28)

0.09 (0.34)

0.14 (0.28)

−0.82 (0.12)

−0.01 (0.29)

 

−0.23 (0.29)

−0.61 (0.15)

0.26 (0.29)

−0.97 (0.05)

0.05 (0.29)

 
  1. BC = Body condition and FCR = Food conversion ratio.
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